A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
In situ observation of storm-wave-induced seabed deformation with a submarine landslide monitoring system
Abstract Submarine landslides move large volumes of sediment and are often hazardous to offshore installations. Current research into submarine landslides mainly relies on marine surveying techniques. In contrast, in situ observations of the submarine landslide process, specifically seabed deformation, are sparse, and therefore restrict our understanding of submarine landslide mechanisms and the establishment of a disaster warning scheme. The submarine landslide monitoring (SLM) system, which has been designed to partly overcome these pitfalls, can monitor storm-wave-induced submarine landslides in situ and over a long time period. The SLM system comprises two parts: (1) a hydrodynamic monitoring tripod for recording hydrodynamic data (e.g., waves, tides, and currents) and (2) a shape accel array for recording seabed deformation at different depths. This study recorded the development of the SLM system and the results of in situ observation in the Yellow River Delta, China, during the boreal winter of 2014–2015. The results show an abrupt small-scale storm-wave-induced seabed shear deformation; the shear interface is in at least 1.5-m depth and the displacement of sediments at 1.23-m depth is more than 13 mm. The performance of the SLM system under real-time field monitoring conditions confirms the feasibility and stability of this approach.
In situ observation of storm-wave-induced seabed deformation with a submarine landslide monitoring system
Abstract Submarine landslides move large volumes of sediment and are often hazardous to offshore installations. Current research into submarine landslides mainly relies on marine surveying techniques. In contrast, in situ observations of the submarine landslide process, specifically seabed deformation, are sparse, and therefore restrict our understanding of submarine landslide mechanisms and the establishment of a disaster warning scheme. The submarine landslide monitoring (SLM) system, which has been designed to partly overcome these pitfalls, can monitor storm-wave-induced submarine landslides in situ and over a long time period. The SLM system comprises two parts: (1) a hydrodynamic monitoring tripod for recording hydrodynamic data (e.g., waves, tides, and currents) and (2) a shape accel array for recording seabed deformation at different depths. This study recorded the development of the SLM system and the results of in situ observation in the Yellow River Delta, China, during the boreal winter of 2014–2015. The results show an abrupt small-scale storm-wave-induced seabed shear deformation; the shear interface is in at least 1.5-m depth and the displacement of sediments at 1.23-m depth is more than 13 mm. The performance of the SLM system under real-time field monitoring conditions confirms the feasibility and stability of this approach.
In situ observation of storm-wave-induced seabed deformation with a submarine landslide monitoring system
Wang, Zhenhao (author) / Jia, Yonggang (author) / Liu, Xiaolei (author) / Wang, Dong (author) / Shan, Hongxian (author) / Guo, Lei (author) / Wei, Wei (author)
2017
Article (Journal)
Electronic Resource
English
BKL:
56.00$jBauwesen: Allgemeines
/
38.58
Geomechanik
/
38.58$jGeomechanik
/
56.20
Ingenieurgeologie, Bodenmechanik
/
56.00
Bauwesen: Allgemeines
/
56.20$jIngenieurgeologie$jBodenmechanik
RVK:
ELIB18
Wave-Induced Response of Submarine Pipeline Embedded in Porous Seabed
| British Library Conference Proceedings | 2014
Wave-induced flow deformation of seabed bearing structures
| British Library Conference Proceedings | 1997
Submarine Pipeline Buckling on the Seabed
| British Library Conference Proceedings | 2000